Deflection monitoring method and system based on fitting inversion mode

Abstract

The invention discloses a deflection monitoring method and system based on a fitting inversion mode. The deflection monitoring method comprises the following steps of: arranging a plurality of measuring points on a to-be-measured component or structure along a span direction at a certain distance; monitoring the inclination angle value of each measuring point in real time; and then based on the numerical values monitored in real time, calculating the overall deflection of the to-be-measured component or structure through deflection curve dynamic fitting and real-time inversion. According to the scheme, high-frequency measurement of the overall deflection of a component or a structure can be achieved under the condition of a complex construction process, automatic real-time monitoring can be achieved in specific implementation, manual operation is not needed, and no requirement is needed for an operation space, a visual space and the like. According to the scheme, the problems of long consumed time, complex manual operation, extremely low acquisition frequency and the like of traditional deflection measurement can be effectively solved, and the deflection monitoring efficiency undercomplex construction conditions is greatly improved.

Description

technical field [0001] The invention relates to engineering monitoring technology, in particular to the monitoring technology of component or structure deflection. Background technique [0002] The current deflection monitoring methods generally adopt the method of measuring by setting up stations (including total stations, levels, etc.) or measuring by displacement sensors (including displacement gauges, dial gauges, etc.). Setting up stations to measure deflection has problems such as time-consuming, manual operation, and extremely low collection frequency, which cannot meet the deflection monitoring requirements under complex conditions such as the construction process. However, monitoring through displacement sensors needs to be installed or connected to a fixed reference point in the environment. For construction processes such as lifting slips or other engineering projects where it is difficult to find fixed points in the environment, this method cannot be used for mon...

AI Technical Summary

Problems solved by technology

[0007] 1) The technical solution of using visual devices or sensors to measure deflection through imaging technology has high requirements on visual space and cannot have visual obstacles. It is not suitable for monitoring the construction process with complex site conditions, and the price of the instrument is relatively expensive;

[0008] 2) The use of visual sensors to measure deflection requires that the measurement object as a whole be static in space, which is not applicable to the construction process monitoring of structures with rigid body displacement such as overall lifting and sliding;

[0009] 3) The use of displacement sensors for deflection measurement requires the use of fixed reference points in the environment, and it is difficult to provide stable monitoring conditions for complex construction conditions or overall lifting and slipping construction processes

[0011] This method of monitoring component deflection using strain gauges is only applicable to homogeneous materials such as steel, and cannot be monitored for heterogeneous materials that are prone to cracking such as concrete; at the same time, the method of using strain gauges to convert deflection is only applicable to single components, not to structures. overall deflection;

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